Hubungan Masa Kerja, Beban Kerja Dan Stres Kerja dengan Kelelahan Kerja Pada Pekerja di Divisi Operations Maintenance PT.XZA

Abstract

Background: Work fatigue is a multidimensional condition characterized by general exhaustion, physiological 
changes, reduced work capacity, and psychological symptoms. In the mining industry, where job demands are 
high, factors such as length of service, workload, job stress, and task demands may influence workers’ fatigue 
levels. Objective: To determine the relationship between length of service, workload (work demands), and job 
stress with work fatigue among workers in the Operations Maintenance Division of PT XZA. Methods: This 
quantitative study employed a cross-sectional design. The study population included all workers in the 
Operations Maintenance Division of PT XZA, with total sampling comprising 464 respondents. The variables 
measured were length of service, workload (COPSOQ III work demands dimension), job stress (NIOSH), and 
work fatigue (Multidimensional Fatigue Inventory/MFI). Data were analyzed using the Chi-square test with a 
significance level of 0.05. Results: No significant relationship was found between length of service or job 
stress and work fatigue (p > 0.05). Conversely, workload (work demands) showed a significant association 
with all dimensions of fatigue including general fatigue, physical fatigue, reduced activity, reduced motivation, 
and mental fatigue (p < 0.001). Conclusion: Workload is the most influential factor contributing to work 
fatigue among workers in the Operations Maintenance Division of PT XZA. Strengthening workload 
management policies and fatigue management systems is essential. Workers are encouraged to increase 
awareness of fatigue symptoms and adopt healthy sleep practices.